Include XPubs in PSBTs for multi sig (#6696)

BTCPayServer/Blazor/VaultBridge/HWIController.cs

@@ -1,5 +1,4 @@
 using System;
-using System.Collections.Generic;
 using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
@@ -19,7 +18,7 @@ namespace BTCPayServer.Blazor.VaultBridge;
 
 public abstract class HWIController : VaultController
 {
-    override protected string VaultUri => "http://127.0.0.1:65092/hwi-bridge/v1";
+    protected override string VaultUri => "http://127.0.0.1:65092/hwi-bridge/v1";
     public string CryptoCode { get; set; }
 
     private static bool IsTrezorT(HwiEnumerateEntry deviceEntry)
@@ -41,7 +40,7 @@ public abstract class HWIController : VaultController
         try
         {
             var network = networkProviders.GetNetwork<BTCPayNetwork>(CryptoCode);
-            var hwi = new Hwi.HwiClient(network.NBitcoinNetwork)
+            var hwi = new HwiClient(network.NBitcoinNetwork)
             {
                 Transport = new VaultHWITransport(vaultClient), IgnoreInvalidNetwork = network.NBitcoinNetwork.ChainName != ChainName.Mainnet
             };
@@ -206,7 +205,6 @@ public class SignHWIController : HWIController
             ui.ShowRetry();
             return;
         }
-
         derivationSettings.RebaseKeyPaths(psbt);
         // otherwise, let the device check if it can sign anything
         var signableInputs = psbt.Inputs
@@ -227,7 +225,7 @@ public class SignHWIController : HWIController
             if (derivationSettings.IsMultiSigOnServer)
             {
                 var alreadySigned = psbt.Inputs.Any(a =>
-                    a.PartialSigs.Any(a => a.Key == actualPubKey));
+                    a.PartialSigs.Any(o => o.Key == actualPubKey));
                 if (alreadySigned)
                 {
                     ui.ShowFeedback(FeedbackType.Failed, ui.StringLocalizer["This device already signed PSBT."]);

BTCPayServer/Controllers/GreenField/GreenfieldStoreOnChainWalletsController.cs

@@ -540,7 +540,7 @@ namespace BTCPayServer.Controllers.Greenfield
                     {
                         SelectedInputs = request.SelectedInputs?.Select(point => point.ToString()),
                         Outputs = outputs,
-                        AlwaysIncludeNonWitnessUTXO = true,
+                        AlwaysIncludeNonWitnessUTXO = derivationScheme.DefaultIncludeNonWitnessUtxo,
                         InputSelection = request.SelectedInputs?.Any() is true,
                         FeeSatoshiPerByte = request.FeeRate?.SatoshiPerByte,
                         NoChange = request.NoChange

BTCPayServer/Controllers/UIWalletsController.PSBT.cs

@@ -27,7 +27,12 @@ namespace BTCPayServer.Controllers
         public async Task<CreatePSBTResponse> CreatePSBT(BTCPayNetwork network, DerivationSchemeSettings derivationSettings, WalletSendModel sendModel, CancellationToken cancellationToken)
         {
             var nbx = ExplorerClientProvider.GetExplorerClient(network);
-            CreatePSBTRequest psbtRequest = new();
+            var psbtRequest = new CreatePSBTRequest()
+            {
+                RBF = network.SupportRBF ? true : null,
+                AlwaysIncludeNonWitnessUTXO = sendModel.AlwaysIncludeNonWitnessUTXO,
+                IncludeGlobalXPub = derivationSettings.IsMultiSigOnServer,
+            };
             if (sendModel.InputSelection)
             {
                 psbtRequest.IncludeOnlyOutpoints = sendModel.SelectedInputs?.Select(OutPoint.Parse).ToList() ?? new List<OutPoint>();
@@ -40,8 +45,6 @@ namespace BTCPayServer.Controllers
                 psbtDestination.Amount = Money.Coins(transactionOutput.Amount ?? 0.0m);
                 psbtDestination.SubstractFees = transactionOutput.SubtractFeesFromOutput;
             }
-            psbtRequest.RBF = network.SupportRBF ? true : null;
-            psbtRequest.AlwaysIncludeNonWitnessUTXO = sendModel.AlwaysIncludeNonWitnessUTXO;
 
             psbtRequest.FeePreference = new FeePreference();
             if (sendModel.FeeSatoshiPerByte is decimal v and > decimal.Zero)
@@ -56,8 +59,7 @@ namespace BTCPayServer.Controllers
             var psbt = (await nbx.CreatePSBTAsync(derivationSettings.AccountDerivation, psbtRequest, cancellationToken));
             if (psbt == null)
                 throw new NotSupportedException(StringLocalizer["You need to update your version of NBXplorer"]);
-            // Not supported by coldcard, remove when they do support it
-            psbt.PSBT.GlobalXPubs.Clear();
+
             return psbt;
         }
 

BTCPayServer/Controllers/UIWalletsController.cs

@@ -316,6 +316,7 @@ namespace BTCPayServer.Controllers
 				{
 					RBF = true,
 					AlwaysIncludeNonWitnessUTXO = paymentMethod.DefaultIncludeNonWitnessUtxo,
+                    IncludeGlobalXPub = paymentMethod.IsMultiSigOnServer,
 					IncludeOnlyOutpoints = bumpableUTXOs,
 					SpendAllMatchingOutpoints = true,
 					FeePreference = new FeePreference()
@@ -369,6 +370,7 @@ namespace BTCPayServer.Controllers
                 {
                     RBF = true,
                     AlwaysIncludeNonWitnessUTXO = paymentMethod.DefaultIncludeNonWitnessUtxo,
+                    IncludeGlobalXPub = paymentMethod.IsMultiSigOnServer,
                     IncludeOnlyOutpoints = tx.Transaction.Inputs.Select(i => i.PrevOut).ToList(),
                     SpendAllMatchingOutpoints = true,
                     DisableFingerprintRandomization = true,
@@ -1329,6 +1331,7 @@ namespace BTCPayServer.Controllers
         public async Task<IActionResult> WalletSendVault([ModelBinder(typeof(WalletIdModelBinder))] WalletId walletId,
             WalletSendVaultModel model)
         {
+            TempData.SetStatusSuccess(StringLocalizer["Transaction successfully signed"].Value);
             return await RedirectToWalletPSBTReady(walletId, new WalletPSBTReadyViewModel
             {
                 SigningContext = model.SigningContext,

BTCPayServer/Extensions.cs

@@ -554,7 +554,8 @@ namespace BTCPayServer
             {
                 PSBT = psbt,
                 DerivationScheme = derivationSchemeSettings.AccountDerivation,
-                AlwaysIncludeNonWitnessUTXO = true
+                AlwaysIncludeNonWitnessUTXO = true,
+                IncludeGlobalXPub = derivationSchemeSettings.IsMultiSigOnServer
             });
             if (result == null)
                 return null;

BTCPayServer/Services/Translations.Default.cs

@@ -1610,6 +1610,7 @@ namespace BTCPayServer.Services
   "Transaction fee rate:": "",
   "Transaction Id": "",
   "Transaction signed successfully, proceeding to review...": "",
+  "Transaction successfully signed": "",
   "transactions": "",
   "Translations": "",
   "Translations are formatted as JSON; for example, <b>{0}</b> translates <b>{1}</b> to <b>{2}</b>.": "",

btcpayserver.sln.DotSettings

@@ -1,4 +1,5 @@
 <wpf:ResourceDictionary xml:space="preserve" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" xmlns:s="clr-namespace:System;assembly=mscorlib" xmlns:ss="urn:shemas-jetbrains-com:settings-storage-xaml" xmlns:wpf="http://schemas.microsoft.com/winfx/2006/xaml/presentation">
+	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=HWI/@EntryIndexedValue">HWI</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=LNURL/@EntryIndexedValue">LNURL</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=NB/@EntryIndexedValue">NBX</s:String>
 	<s:String x:Key="/Default/CodeStyle/Naming/CSharpNaming/Abbreviations/=NBXplorer/@EntryIndexedValue">NBXplorer</s:String>